Rubber,various high glass fiber, mineral fiber and PPA,PPS, PA6T, LCP,VO fire protection, ferrous power, magnetic powder and etc. Meanwhile,Used for PVC + 30% CaCo3, recylced plastic material
Heat-treatment:
1\Nitriding treatment
2\Electroplated hard-chrome finish
3\High-frequency quenching
4\Spray coating Bimetallic-alloy
5\Vacuum quenching
Technical specification
| Material | 38CrMoALA,9Cr18MoV |
| Application | PVC,ABS,TPO |
| Hardness After Hardening &Tempering: | HB240 -280 |
| Nitrided Hardness: | Hv850-1000 |
| Nitrided Depth: | 0.45-0.7mm |
| Nitrided Brittleness: | ≤Grade 2 |
| Surface Roughness: | Ra0.4 |
| Screw straightness: | 0.015mm |
| Surface Chromate-plating's Hardness After Nitrided: | ≥900Hv |
| Chromate-plating Depth: | 0.05-0.10mm |
| Bimetallic-alloy Hardness: | HRC56 -65 |
| Alloy Depth: | 0.8-2.0mm |
COLD FEED PINNED SCREW & BARREL OF RUBBER MACHINE
Φ60mm~Φ250mm
L/D=12-18
COLD FEED SCREW & BARREL OF RUBBER MACHINE
Φ45mm~Φ300mm
L/D=8-20
HOT FEED SCREW & BARREL OF RUBBER MACHINE
Φ45mm~Φ250mm
L/D=4-6
